2017
DOI: 10.1007/s10661-017-6035-y
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Water quality assessment with hierarchical cluster analysis based on Mahalanobis distance

Abstract: Water quality assessment is crucial for assessment of marine eutrophication, prediction of harmful algal blooms, and environment protection. Previous studies have developed many numeric modeling methods and data driven approaches for water quality assessment. The cluster analysis, an approach widely used for grouping data, has also been employed. However, there are complex correlations between water quality variables, which play important roles in water quality assessment but have always been overlooked. In th… Show more

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Cited by 37 publications
(11 citation statements)
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“…The outer surface of the fungal biomass and active carbon (AC) are coated with particles with diameters ranging from 0.1 to 1 mm, suggesting that the dyes were primarily adsorbable onto the fungus hyphae and AC. The presence of polysaccharides in the fungal biomass cell wall gives the hyphae ball a great capacity for biosorption [12]. The average crystallite sizes of MgO-impregnated clay and nano-bentonite, which were estimated via the Debye-Scherrer equation, were 46.6 and 38.9 nm, respectively.…”
Section: Morphological Structure Of Prepared Adsorbentsmentioning
confidence: 99%
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“…The outer surface of the fungal biomass and active carbon (AC) are coated with particles with diameters ranging from 0.1 to 1 mm, suggesting that the dyes were primarily adsorbable onto the fungus hyphae and AC. The presence of polysaccharides in the fungal biomass cell wall gives the hyphae ball a great capacity for biosorption [12]. The average crystallite sizes of MgO-impregnated clay and nano-bentonite, which were estimated via the Debye-Scherrer equation, were 46.6 and 38.9 nm, respectively.…”
Section: Morphological Structure Of Prepared Adsorbentsmentioning
confidence: 99%
“…The second-order response surface polynomial function [Eqs. (11) and (12)] can be used to predict the dye's optimum operating circumstances: The assessment of variance (ANOVA) for MG elimination efficiency in the cases of nano-bentonite and MgOimpregnated clay was applied to validate the model, as given in Table 4(a, b). The correlation between the variables and the responses was determined using the quadratic model and second-order polynomial analysis.…”
Section: Optimization Of Adsorption By Box-behnken Designmentioning
confidence: 99%
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“…The Mahalanobis distance is widely used in many fields, such as electronics and information systems [56,57], machine learning and pattern recognition [58][59][60][61] as well as water quality assessment [62]. The Mahalanobis distance in these applications usually replaces the Euclidean distance for clustering analysis.…”
Section: Mahalanobis Distance Operationmentioning
confidence: 99%
“…Ukpatu et al [12] used the agglomerative hierarchical cluster analysis to Assessment of water quality of Okoro River Estuary, Southeastern Nigeria. Du et al [13] used hierarchical and non-hierarchical clustering methods for determining the water quality depending on the distance of water. Arbolino et al [14] used a hierarchical clustering analysis method to classify regions in Italy in order to determine the efficiency of EU greenhouse gas emission regulation.…”
Section: Introductionmentioning
confidence: 99%